What will the primary use be RB?

Seeing the price range you're looking at, a little more can get you a Sig P320 RX (with reflex optics). A bargain in the $800 price range....

https://www.americanrifleman.org/art...ight-round-up/

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'03 X5 4.4 Sport, last of the M62s (8-03 build date)
I believe in deadication to craftmanship in a world of mediocrity!